president obama and first lady on the way to south africa to pay respect for nelson mandela. presidents george w. bush and jimmy carter will attend the memorial being held at the same stadium where mandela made his last public appearance. we'll talk about the security challenges when half of the world's leaders are in one location. >>> three teenagers arrested accused of letting their friend drive drunk before she crashed and died. should the teenagers be held accountable? we'll discuss this next on "news nation." [ female announcer ] puffs knows winter is hard on your face. [ sneezes ] [ female announcer ] the start of sneeze season. the wind-blown watery eyes. [ sniffling ] the sniffling guy on the bus. and, of course, the snow angels with your little angels. that's why puffs plus lotion is soft. puffs plus are dermatologist tested to be gentle. they help soothe irritated skin by locking in moisture better. so you can always put your best face forward. a face in need deserves puffs indeed. a man who doesn't stand still. but jim has afib, atrial fibrillation -- an irregular